Dental The oxygen consumption of normal gingiva is: A 1.6 ± 0.3 B 0.9 ± 0.22 C 2.7 ± 0.41 D 1.9 ± 0.21 💡 Explanation The oxygen consumption of normal gingiva is: ✓ Correct Answer: A. 1.6 ± 0.3